well I went riding for the first time on my new ltr. I went riding for 2 days and the whole time I was riding, the fan never came on once. I was just breaking the motor in, but I still rode pretty hard. I did about 8 laps, then let it cool down for 5-10 minutes, then did another 8 or so laps, the whole time I was there. Maybe I just didnt ride it long enough for the fan to come on, but I know that my brother rode the exact same time as I did, and his kfx400's fan came on quite a bit throughout the 2 days. Maybe im just alittle paranoid because Its my brand new machine, but I dont want my fan not to be working, causing it to overheat. Thanks a lot and lets here some replies.